private void calcLineMin() {
m_kImagePointsDual.DetachAllEffects();
m_kImagePointsDual.AttachEffect(m_kImageLineMinDual);
boolean bEarly = false;
Texture kTarget = null;
OpenGLFrameBuffer kCurrentBracket = m_kBracketOut;
OpenGLFrameBuffer kNewBracket = m_kBracketNewOut;
OpenGLFrameBuffer kTempBracket;
for (int i = 0; i < 100; i++) {
m_kCalcTransform.SetTexture(kCurrentBracket.GetTarget(0), 0, 0);
m_kImageLineMinPass2a.SetTexture(kCurrentBracket.GetTarget(0), 0, 0);
// 1. Create the transform matrix based on the current bracket.
m_pkRenderer.Resize(
m_kTransformOut.GetTarget(0).GetImage().GetBound(0),
m_kTransformOut.GetTarget(0).GetImage().GetBound(1));
m_kTransformOut.Enable();
m_pkRenderer.ClearColorDepth();
// m_pkRenderer.ClearBuffers();
m_pkRenderer.Draw(m_kTransformPoints);
m_kTransformOut.Disable();
/*
kTarget = m_kTransformOut.GetTarget(0);
m_pkRenderer.GetTexImage( kTarget );
for ( int j = 0; j < kTarget.GetImage().GetFloatData().length; j++ )
{
System.err.print( kTarget.GetImage().GetFloatData()[j] + " " );
}
System.err.println( " " ); */
// 1. Render all image points w/LineMin1 shaders
m_pkRenderer.Resize(
m_kHistogramOutput.GetTarget(0).GetImage().GetBound(0),
m_kHistogramOutput.GetTarget(0).GetImage().GetBound(1));
m_kHistogramOutput.Enable();
m_pkRenderer.ClearColorDepth();
// m_pkRenderer.ClearBuffers();
m_pkRenderer.Draw(m_kImagePointsDual);
m_kHistogramOutput.Disable();
// 2. Render Histogram points
m_pkRenderer.Resize(
m_kHistogramOutputB.GetTarget(0).GetImage().GetBound(0),
m_kHistogramOutputB.GetTarget(0).GetImage().GetBound(1));
m_kHistogramOutputB.Enable();
m_pkRenderer.ClearColorDepth();
// m_pkRenderer.ClearBuffers();
m_pkRenderer.Draw(m_kHistogramPoints2D);
m_kHistogramOutputB.Disable();
// 3. Render Entropy points w/LineMin1 shader
m_pkRenderer.Resize(
m_kEntropyOut.GetTarget(0).GetImage().GetBound(0),
m_kEntropyOut.GetTarget(0).GetImage().GetBound(1));
m_kEntropyOut.Enable();
m_pkRenderer.ClearColorDepth();
// m_pkRenderer.ClearBuffers();
m_pkRenderer.Draw(m_kEntropyPoints2D);
m_kEntropyOut.Disable();
// 4. Render bracket points w/LineMin2 shader
m_kBracketPoints.DetachAllEffects();
m_kBracketPoints.AttachEffect(m_kImageLineMinPass2a);
m_pkRenderer.Resize(
kNewBracket.GetTarget(0).GetImage().GetBound(0),
kNewBracket.GetTarget(0).GetImage().GetBound(1));
kNewBracket.Enable();
m_pkRenderer.ClearColorDepth();
// m_pkRenderer.ClearBuffers();
m_pkRenderer.Draw(m_kBracketPoints);
kNewBracket.Disable();
kTempBracket = kCurrentBracket;
kCurrentBracket = kNewBracket;
kNewBracket = kTempBracket;
if ((i % 6) == 0) {
// kTarget = m_kBracketOut.GetTarget(0);
kTarget = kCurrentBracket.GetTarget(0);
m_pkRenderer.GetTexImage(kTarget);
/*
System.err.println("");
System.err.println("");
System.err.println( "GPU BracketA = " + kTarget.GetImage().GetFloatData()[0] + " " + kTarget.GetImage().GetFloatData()[1]);
System.err.println( "GPU BracketB = " + kTarget.GetImage().GetFloatData()[4] + " " + kTarget.GetImage().GetFloatData()[5]);
System.err.println( "GPU BracketC = " + kTarget.GetImage().GetFloatData()[8] + " " + kTarget.GetImage().GetFloatData()[9]);
System.err.println( " " + i + " xNew = " + kTarget.GetImage().GetFloatData()[3] + " yNew = " +
kTarget.GetImage().GetFloatData()[6] + " case: " + kTarget.GetImage().GetFloatData()[7] + " " +
kTarget.GetImage().GetFloatData()[10] + " " +
kTarget.GetImage().GetFloatData()[11]);
*/
if ((Math.abs(kTarget.GetImage().GetFloatData()[8] - kTarget.GetImage().GetFloatData()[0])
<= m_fUnitTolerance)) {
m_afBracketB[0] = kTarget.GetImage().GetFloatData()[4];
m_afBracketB[1] = kTarget.GetImage().GetFloatData()[5];
bEarly = true;
break;
}
if (kTarget.GetImage().GetFloatData()[3] == 0) {
m_afBracketB[0] = kTarget.GetImage().GetFloatData()[4];
m_afBracketB[1] = kTarget.GetImage().GetFloatData()[5];
bEarly = true;
System.err.println("BREAK EARLY BAD");
break;
}
}
}
if (!bEarly) {
// kTarget = m_kBracketOut.GetTarget(0);
kTarget = kCurrentBracket.GetTarget(0);
m_pkRenderer.GetTexImage(kTarget);
m_afBracketB[0] = kTarget.GetImage().GetFloatData()[4];
m_afBracketB[1] = kTarget.GetImage().GetFloatData()[5];
/*
System.err.println("");
System.err.println("");
System.err.println( "GPU BracketA = " + kTarget.GetImage().GetFloatData()[0] + " " + kTarget.GetImage().GetFloatData()[1]);
System.err.println( "GPU BracketB = " + kTarget.GetImage().GetFloatData()[4] + " " + kTarget.GetImage().GetFloatData()[5]);
System.err.println( "GPU BracketC = " + kTarget.GetImage().GetFloatData()[8] + " " + kTarget.GetImage().GetFloatData()[9]);
*/
}
// System.err.println( m_afBracketB[0] + " " + m_afBracketB[1] );
}
// utility for contains takes an offset so we can check the two parts of the portal
public boolean contains(int offset, int x, int y) {
Edge2D e = new Edge2D(pts2d.get(offset), pts2d.get(offset + 1));
Point2D pe = e.toLineSpace(new Point(x, y));
return (pe.getX() > 0 && pe.getX() < 1 && Math.abs(pe.getY()) < EPSILON);
}